Production processes and the application of hot dip galvanized steel in various industries

Hot dip galvanized steel processing will be part of the lubricant remains in the inner and outer surfaces, after annealing in the hot dip galvanized steel surface will form a carbon film in 1980 has galvanized experts on the surface of the carbon steel pipe a lot the study proposed carbon galvanized tube life will be adversely affected. Although since then there is no final conclusion on quantitative indicators of carbon steel pipe life impact and influence of carbon, but carbon on hot dip galvanized steel harmful but agreed to eliminate the carbon surface of the tube, it became a hot-dip degreasing zinc processing an essential part.

Effect of hot dip galvanized quality factors:

Operating speed: When steel should be immersed in the work and ensure the safety of the premise as quickly as possible, this will ensure that all parts of the film thickness is the same throughout the galvanized lifting speed according to the steel structure, material, length of different different speeds, in general, lifting speed of 1.5 m / min can guarantee good reflux liquid zinc and surface brightness.

Use tooling: The tooling for hot-dip galvanizing galvanizing process is very important, a good tooling can significantly improve the yield and quality, but the tooling design depends on the kind of set galvanized, requiring on-site design, tooling design should take into account the production capacity, the steel shape, size and technical requirements of customers.

Passive cooling: hot-dip galvanized steel after doing cooling process tank, cooling water is generally water, from steel zinc pot hanging out later to be cooled as quickly as possible, to maintain the workpiece is not deformed. The optimum temperature should be at 30 degrees -70 degrees, may be added an appropriate amount of a surfactant in water, to improve the surface gloss of steel.